Bring a large pot of salted water to a boil. Add the penne pasta and cook according to package instructions until al dente. Drain and rinse under cold water to cool.

In a large mixing bowl, combine the cooked pasta, diced chicken, chopped romaine, halved cherry tomatoes, and shredded parmesan cheese.

In a small bowl, whisk together the Caesar dressing, lemon juice, and black pepper.

Pour the dressing over the salad and toss gently to combine. Serve immediately or refrigerate for up to an hour before serving.